Door-opening mechanism



R. W. McCLENON.

DOOR OPENING MECHANISM.

AIFLICATION FILED DEC.I5, 1919.

1,356,077; Patented Oct. 19,1920.

mmntoz my invention will become apparent during RAYMOND WALTER MGCLENON, OF FRANKLIN, NEW YORK. I

DOOR-OPENING MECHANISM.

Specification of Letters l atent. 1 Patented Oct. 19, 1920;

Application filed December 15, 1919. Serial No. 345,115.

To all whom it may concern:

Be it known that I, RAYMOND W. Mo- ULnNoN, a citizen of the United States, residing at Franklin, New York, have invented new and useful Improvements in Door- Opening Mechanism, of which the following is a specification.

The present invention relates to improvements in door opening mechanism, more particularly to an arrangement whereby a door or other movable structure may be swung open, its support or carrying member retained in an opened position and which also includes means to return the same to its normal position at such time as desired.

A further object of the invention is to provide an improved arrangement of the character set forth above which may be manipulated by the foot of the operator at a point either inside or outside.

Various other objectsand advantages of the continuance of the following descrip tion.

In the drawings 2- V Figure 1 is a view in front elevation with the door sill shown in sections.

Fig. 2 is a view in cross-section of a door showing the operating means therefor in top plans.

Fig. 3 is a fragmentary view of the door still showing means to retain the door in an opened position.

Fig. 4; is a view in perspective of a bolt.

In the drawings 10 designates a suitable supporting structure hereinafter referred to as the door sill and 11 indicates the door j amb. The sill 10 is cut away as shown at 12 and is provided in such cut-away portions with supporting sockets 13 that receive the lower end of the door carrying rods 14 and 15 respectively. The rods 14 and 15 extend upwardly to the sides of the jamb 11 and pass through bushings 16 of the sill 10 and carrying sleeves 17 of the jamb. The door members 18 carry sleeves or bearings 19 which embrace the rods la and 15 as shown in Fig. 1 so as to provide for the proper supporting thereof. From this arrangement, it will be readily. seen that the doors 18 are free to swing upon the rods 14 and 15 from an open to a closed position and vice versa.

A small carrying arm 20 is arranged below the sill 10 and has connected therewith oppositely extending chain members 21 and which in turnhave their outer ends wound about and secured to the lower por- 1 tion of the rods 1e and 15. I

Operation members, such as shown in Fig. 4: are now provided which consist of a bolt which extends upwardly through openings 24: in the sill and which are adapted to be engaged by the foot of the operator, a base 25 adapted to ride upon the chain members 21 and 22 and arms or finger 26 which extend on each side of the chain members as shown in Fig. 1. It will nowbe observed thatby applying pressure to the upper or free end of the extension 23, the base 25 of the operating member will be depressed, thus forcing the chain members backwardly so as to cause the same to unwind from the respective rods let and 15. Such action of the chain member will cause the doors to move into an opened position. In order to provide means to retain the doors or other movable members in an opened position, I provide leaf springs 27 which may be secured to the floor or sill 10 as at 28 and which have their free ends which normally project above the level of 30. The lug 30 projects through an opening 31 in the sill, as shown in Fig. 3 so that when pressure is applied thereto, the spring 27 may be drawn backwardly to a position substantially level with the sill. When in the latter position, the spring will allow the doors to move freely thereover.

A stud 32 is slidingly mounted on sill 10 and through a bushing 33 is connected at its lower end with one end of a chain or other small connecting member 34. The chain 34 works over a pulley or other hear ing surface 35 and is connected at its other end to the lower end of the lug 30 of the spring 27 as at 36. From this construction, it will be seen that when pressure is applied to the stud 32, the chain 34 will be drawn from the pulley 35 thus causing thespring 27 to become depressed.

It is also desirable to provide suitable means to retain the doors in a normally slow'position to yieldingly resist the opening thereof. To this end, I provide coil springs 37 which are arranged about the rods 14: and 15, one end of each spring bearing against the door jamb and the other end of each spring bearing against the respective door member.

In operating, assuming that the doors are in a closed position, as shown at Fig. 1,

unwinding of the chain members from the rods l4 and 15, thus rotating the rods so as to move the door members into a position shown in dotted lines in Fig. 2. To close the doors, the operator simply depresses the stud 32 which through the medium of the chain 34 moves the leaf springs 27 to release the doors and the latter will move into a closed position by action of the coil spring 37.

From the foregoing, it is believed that the advantages and novel features of my invention will be readily understood and therefore further detailed description is deemed unnecessary.

Having thus fully described my inventure including a door sill, of carrying standa-rds'movably mounted thereon, doors carried by said standards and movable therewith, operating cables. the ends of said operating cables being wound about said carrying standards, actuating studs movably mounted in said supporting structure, bifurcated heads on said studs overlying said cables and said studs being adapted to actuate said cables to move said carrying standards and said door members substantially as described.

RAYMOND WALTER MoCLENON.

Witnesses:

. Rom. E. MoCLENoN, MILLARD MoCLENoN. 

